Stefan Karl Stefansson, better known as Robbie Rotten from LazyTown, has tragically passed away at the tender age of just 43. Which is too damn young for anyone to die.

Stefan Karl, who died from bile duct cancer after several years battling the disease, played the villain in 104 episodes of the Icelandic kids’ show.

This tribute video from Behind the Meme shows how Stefansson’s performance went beyond LazyTown, as his character and performance became the basis of a popular meme.

This is a tragic end for an actor whose character will have been a big part of many people’s childhoods. Rest in Peace, Stefan Karl.